290.5 HRC = 2,963.1 HV
| HRC | HV |
|---|---|
| 275.5 HRC | 2,810.1 |
| 280.5 HRC | 2,861.1 |
| 285.5 HRC | 2,912.1 |
| 290.5 | 2,963.1 |
| 295.5 HRC | 3,014.1 |
| 300.5 HRC | 3,065.1 |
| 305.5 HRC | 3,116.1 |
290.5 HRC = 2,963.1 HV
1 HRC ≈ 10.2 HV · 1 HRB ≈ 1.8 HV · 1 Mohs ≈ 0.1 HV — approximate; real conversions vary by material per ASTM E140